At least six other juvenile arrests have taken place in the San Diego area -- three this week -- amid a rash of school-violence threats that have erupted nationwide in the aftermath of last month's mass-casualty shooting rampage at Marjory Stoneman Douglas High School in Parkland, Florida.

“The school has had the support of the San Diego Police and San Diego Unified Police today,” Podhorsky wrote. “I wanted to make you aware that the student who made the threat has been taken into custody (off campus). We will continue to have the support of officers throughout the day.”